The card game, playable on Game Boy Color. Eight Club Masters, one Grand Master. And a legend of a promotional card.
Pokémon Trading Card Game was developed by Hudson Soft and released for Game Boy Color in December 1998. It translated the physical Pokémon TCG into a complete single-player experience: tournaments, card shops, legendary prize cards, and a structured progression through eight Club Masters to reach Ronald, the Grand Master. The game gave players access to all the core card mechanics without needing a physical deck or opponent. A promotional card — the Imakuni? trainer card — was available only to players who had connected with a specific NPC and met a series of unusual conditions. The game sold over 3 million copies worldwide, making it one of the most successful Game Boy Color games. A sequel released only in Japan followed in 2001.
About this game
Pokémon Trading Card Game (1998) for Game Boy Color is a digital adaptation of the Pokémon TCG developed by Hudson Soft and Creatures, containing cards from the Base Set, Jungle, and Fossil sets alongside approximately 20 GBC-exclusive cards never printed in the physical game. Players follow protagonist Mark through a campaign of eight Club Masters and four Grand Masters to earn the Legendary Cards. Sold 3.7 million copies worldwide, it remains a beloved spin-off that delivered the full TCG experience on a handheld screen.
Key Features
The game faithfully adapts the Pokémon TCG rules for a single-player campaign, allowing players to build and refine decks from collected cards between matches. Three starter decks are available at the outset (Charmander & Friends, Squirtle & Friends, Bulbasaur & Friends), with further cards won through duels. Club Masters operate themed elemental clubs — defeating each unlocks new opponents and rare cards. The game includes 228 cards total; approximately 20 are exclusive to the GBC version and were never produced as physical cards.
Gallery
The Story Behind
Pokémon Trading Card Game arrived in Japan in December 1998, at the peak of the global Pokémon phenomenon, and sold over 607,000 copies in Japan alone by the end of 1999. The development was outsourced to Hudson Soft — not Game Freak, the studio behind the mainline RPGs — making it one of the earliest examples of Nintendo licensing Pokémon to a third-party developer for a spin-off. Its North American release in April 2000 came just as the initial Pokémon craze was beginning to cool, but the game found a committed audience of TCG players who valued the digital format's elimination of physical card costs. A Japan-exclusive sequel, Pokémon Card GB2: Here Comes Team GR!, followed in 2001.
Tricks & Tales
Hudson Soft is not credited on the game's packaging or cartridge — the development credit appears only in the ending credits, an unusual omission for a major Game Boy release. The eccentric NPC Imakuni? is based on real Japanese musician Tomoaki Imakuni, who contributed to the Pokémon anime soundtrack and is known for performing in a full-body black mouse costume. Two cards from the physical TCG — Electrode (Base Set) and Ditto (Fossil) — are absent from the GBC version despite being part of the sets it draws from. The sequel, Pokémon Card GB2, was never released outside Japan and features the villainous Team GR attempting to steal all cards — making it a collector's item for import enthusiasts.
Collector's Guide
Region & Compatibility
Released in Japan (December 1998), North America (April 2000), and Europe (December 2000). The Japanese version is titled ポケモンカードGB. The sequel (Pokémon Card GB2: Here Comes Team GR!) was Japan-exclusive and was never localized.
Maintenance Tips
Pokémon Trading Card Game uses an internal save battery (CR2025) for game progress. If saves are being lost, battery replacement is required — a standard soldering procedure for GBC cartridges. The game is compatible with both Game Boy Color and original Game Boy hardware (in grayscale mode). Clean cartridge pins with isopropyl alcohol if experiencing startup failures.
Going deeper
Explore the machine this game ran on, and what to check before you buy or care for one:
What to Watch Out For
Before buying, these are the points worth knowing — from someone who handles original Japanese Pokémon Trading Card Game copies regularly.
Is this a region-free game? Will a Japanese Game Boy cartridge work on any Game Boy console?
Yes. The original Game Boy, Game Boy Pocket, and Game Boy Color have no hardware region lock — a Japanese cartridge plays on any Game Boy or Game Boy Color console worldwide without modification. The game itself is in Japanese, but the hardware accepts it freely. Game Boy Advance consoles are also backward-compatible with Game Boy and Game Boy Color cartridges and share this region-free status.
How should I clean a Game Boy cartridge?
Apply 90% or higher isopropyl alcohol to a cotton swab and gently wipe the gold-plated edge contacts on the base of the cartridge. Never blow into the cartridge — breath moisture accelerates contact corrosion. If the shell needs to be opened for deeper cleaning, Game Boy cartridges use 3.8mm security game bit screws. The contacts are small; clean with a gentle wiping motion rather than abrasive pressure.
Before You Buy
Things worth knowing before you buy Pokémon Trading Card Game
A short checklist for buying a used Game Boy Color cartridge wisely — useful with any seller, anywhere.
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Choose a seller who tests it before shipping
A copy that has actually been powered on and checked is a known quantity. An untested one is a gamble you only settle after it arrives.
Look for a seller who states it was function-tested and says what they confirmed. A serious seller can tell you exactly what was checked.
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Good news — Game Boy Color is region-free
These cartridges are not region-locked, so a Japanese copy plays on any compatible Game Boy worldwide.
Confirm whether the title is Color-only or also works on the original Game Boy.
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If this title saves your progress, check the battery
Cartridges that save use a small coin-cell battery that fades over decades — a dead one wipes your save without warning.
Ask the seller whether the save function was tested. Replacing the battery is possible, but doing so erases any existing save.
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Check that the contacts are clean
Dirty edge contacts are the most common cause of startup and sound trouble in cartridges of this age.
Choose a seller who cleans the contacts before shipping. A note that it was tested and cleaned means the basics were handled.
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Read the seller's reviews and return policy
A 100% positive record across thousands of sales is close to a guarantee — packing, communication and problem-solving all work for everyone. A return policy protects you if something is off.
Read the feedback and confirm a clear return window before you buy.
The last step before buying anywhere is knowing what it's worth.
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